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Frozen McIntosh MX135 😰

My MX135 froze  :(

All of a sudden I was unable to control the volume or change inputs.  At first, I'd turn it off and turn it back on with the red button and it would be good for a couple minutes.

Then, the red button would not turn off the unit, stopped so I turned it on and off with the black button.  That worked for awhile but not anymore.

Before I brought it to the shop, there were a bunch of @@@@@@@ on the screen.  Of course, the @@@@@@@ did not show up when I brought it in.

It has been in the shop for over a week.  The repair shop regularly repairs McIntosh but is stumped on this one.  He mentioned a system reboot, I think.  He's made calls into McIntosh.

Has anyone experience this problem and how was remedied?  I'd appreciate any input.
128x128tobaccoleafpie
michelzay
114 posts
 
I have never had any problem with my MX135 which have been used for a few years in my second system. Usually Mcintosh gears are very liable devices.

In Amps or preamps and specially processors, turning on/off is not an efficient way to reset the device. Let your Mx135 unplugged overnight in order to discharge all capacitors and try again. Hopefully it will reboot the processor with its original version...
mcintech
128 posts
 
Hi,
Former Authorized McIntosh tech, there is a service bulletin regarding the MX-135: locking up replace an IC in the front panel: IC20. Should be able to get the repair at your dealer.

Hope this helps
tobaccoleafpie's avatar
tobaccoleafpie OP
36 posts
 
Thanks so much everybody!  Its the IC front panel and I'm going to get it back soon!

🤗

jimmyc1996's avatar
jimmyc1996
1 posts
 
T
I'm having the same problem with My MX135
Did you get yours back? 
If yes may I asked, what did  it cost to Fix
absoundlabs
1 posts
 
Hi Everybody...

I was wondering if a copy of or the SB Number might be available. We do not have this information in the Database and our Service Department isn't able to provide one. Either eMail or scan or USPS would be greatly appreciated.

Thanks!
Mark - McIntosh Service Center
Fax - (952) 456-4937
eMail - McIntosh@AbSoundLabs.Com

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